County · Georgia
Lamar County, Georgia
Lamar County, Georgia. Lamar County had 20,941 residents in 2025 by the Census Bureau's estimate, up 13.2% since 2020, faster than Georgia (+5.5%). It holds 3 places (3 cities, villages and boroughs) and 4 census tracts. GEOID 13171.
Residents, July 2025 estimate
20,941
Census Bureau estimate (no margin published)
2020 Census count: 18,500 · ACS 2020-2024: 19,571
Median household income
$67,062
±$7,932 (90% margin)
Georgia: $77,353
Median home value
$216,500
±$27,177 (90% margin)
Georgia: $303,300
Median gross rent
$878
±$93 (90% margin)
Georgia: $1,393
How many people live in Lamar County, and is it growing?
The 2020 Census counted 18,500 residents in Lamar County. The Census Bureau estimates 20,941 for July 1, 2025, up 13.2% since 2020, faster than Georgia (+5.5%). The 2020-2024 American Community Survey puts the population at 19,571 over 184 square miles of land.
| Measure | Lamar County | Georgia | Change since 2015-2019 |
|---|---|---|---|
| Total population | 19,571 | 10,940,407 | +899 |
| Households | 7,133±216 | 4,074,366 | +639 |
| Average household size | 2.60±0.08 | 2.62 | no clear change |
| Housing units | 7,866±22 | 4,541,835 | +275 |
Lamar County's population since 2000
From 15,912 in 2000 to 20,941 in 2025: up 31.6%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Lamar County?
Lamar County holds 3 places: 3 cities, villages and boroughs (incorporated places). The largest is Barnesville with 6,329 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Barnesville | 6,292 | $57,411 |
|---|---|---|
| Milner | 772 | $67,476 |
| AldoraGEOID 1301248 | 0 | $27,708 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Lamar County?
The median resident of Lamar County is 39.2 years old; 20.4% are under 18 and 17.7% are 65 or older. The largest group is non-Hispanic white residents at 66.4%, then non-Hispanic Black residents at 27.1%. 2.7% of residents were born outside the United States.
| Measure | Lamar County | Georgia | Change since 2015-2019 |
|---|---|---|---|
| Median age | 39.2±1.4 | 37.6 | no clear change |
| Under 18 years | 20.4%±0.2 pts | 23.2% | – |
| 65 years and over | 17.7%±0.7 pts | 15.0% | – |
| Hispanic or Latino (any race) | 3.4% | 11.0% | +0.9 pts |
| White alone, not Hispanic | 66.4%±0.2 pts | 49.1% | +1.2 pts |
| Black or African American alone, not Hispanic | 27.1%±1.0 pts | 30.7% | −2.3 pts |
| Asian alone, not Hispanic | 0.7%±0.3 pts | 4.5% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.2 pts | 0.1% | – |
| Two or more races, not Hispanic | 2.3%±1.1 pts | 3.9% | – |
| Some other race alone, not Hispanic | 0.0%±0.1 pts | 0.6% | – |
| Born outside the United States | 2.7%±1.0 pts | 11.2% | no clear change |
| Speak a language other than English at home (age 5+) | 1.8%±1.2 pts | 15.5% | – |
| Civilian veterans (age 18+) | 8.5%±1.9 pts | 7.2% | – |
| With a disability | 15.9%±2.1 pts | 13.1% | – |
| No health insurance coverage | 10.7%±2.9 pts | 12.4% | no clear change |
| High school graduate or higher (age 25+) | 89.6%±2.1 pts | 89.2% | – |
| Bachelor's degree or higher (age 25+) | 19.2%±4.3 pts | 34.9% | no clear change |
| Graduate or professional degree (age 25+) | 7.7%±2.8 pts | 13.9% | – |
| Moved from another state in the past year | 1.3%±0.9 pts | 2.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Lamar County earn?
Half of Lamar County's 7,133 households earn less than $67,062 a year (±$7,932), against $77,353 in Georgia. In 2015-2019 the median was $55,192 in 2024 dollars, so it rose by $11,870 after inflation. 9.6% of residents live below the poverty line.
| Measure | Lamar County | Georgia | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $67,062±$7,932 | $77,353 | +$11,870 |
| Mean household income | $86,227±$6,395 | $106,944 | – |
| Per capita income | $33,296±$2,200 | $40,924 | +$5,712 |
| People below the poverty line | 9.6%±2.8 pts | 13.4% | −9.0 pts |
| Children under 18 below the poverty line | 8.1%±5.5 pts | 18.3% | – |
| Households receiving SNAP | 13.5%±3.6 pts | 12.3% | – |
| Households with a broadband subscription | 85.2%±3.5 pts | 91.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Lamar County?
Owners occupy 75.7% of Lamar County's occupied homes and renters 24.3%. The median owner-occupied home is valued at $216,500 by its owner (±$27,177). The median renter pays $878 a month including utilities, and 24.5% of renters pay 35% or more of their income on rent.
| Measure | Lamar County | Georgia | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $216,500±$27,177 | $303,300 | +$37,311 |
| Median gross rent | $878±$93 | $1,393 | no clear change |
| Renters paying 35% or more of income on rent | 24.5%±9.5 pts | 43.4% | −25.2 pts |
| Median monthly owner costs, with a mortgage | $1,469±$90 | $1,783 | – |
| Owner-occupied homes | 75.7%±3.8 pts | 65.7% | +6.5 pts |
| Housing units | 7,866±22 | 4,541,835 | +275 |
| Homeowner vacancy rate | 0.6%±0.9 pts | 1.1% | – |
| Rental vacancy rate | 1.6%±2.7 pts | 6.8% | – |
| Single-family detached homes | 72.6%±4.3 pts | 66.3% | – |
| Mobile homes | 17.4%±4.3 pts | 7.8% | – |
| Built 2020 or later | 3.5%±1.2 pts | 2.7% | – |
| Built 1939 or earlier | 10.8%±3.2 pts | 3.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Lamar County building?
Builders took permits for 136 new housing units across Lamar County in 2025 (136 single-family), 6.5 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Lamar County get to work?
83.2% of Lamar County's workers drive alone and 5.6% work from home. The average trip to work takes 31.8 minutes. The unemployment rate in 2020-2024 averaged 4.1%.
| Measure | Lamar County | Georgia | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 56.8%±3.2 pts | 63.8% | – |
| Unemployment rate | 4.1%±2.2 pts | 5.1% | −3.5 pts |
| Drove alone to work | 83.2%±3.7 pts | 70.9% | – |
| Carpooled | 8.7%±3.0 pts | 8.9% | – |
| Public transportation | 0.0%±0.5 pts | 1.1% | – |
| Walked | 1.2%±0.9 pts | 1.3% | – |
| Worked from home | 5.6%±2.1 pts | 15.9% | no clear change |
| Mean travel time to work | 31.8 min±2.8 | 28.3 min | +5.3 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Lamar County's census tracts?
Lamar County is divided into 4 census tracts. Among those with a reliable estimate, median household income runs from $57,896 (Tract 9703) to $80,643 (Tract 9701).
| Tract 970113171970100 | 7,614±601 | $80,643 |
|---|---|---|
| Tract 9702.0113171970201 | 3,681±598 | $68,393 |
| Tract 9702.0213171970202 | 3,554±491 | $64,624 |
| Tract 970313171970300 | 4,722±588 | $57,896 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Lamar County compare with Georgia's other counties?
| Measure | Rank |
|---|---|
| Population | 95th of 159 |
| Growth 2020-2025 | 12th of 159 |
| Residents per square mile | 58th of 159 |
| Median household income | 53rd of 159 |
| Median home value | 61st of 159 |
| Median gross rent | 81st of 157 |
| Poverty rate | 140th of 159 |
| Bachelor's degree or higher | 78th of 159 |
| Median age | 91st of 159 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Lamar County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.